Improvement in gauge attachment for tinsmiths  shears



dnted tates ORSON W. SITOW, OF PLANTSVILLE, CONNECTICUT.

Letters Patent No. 104,07 6, ela-ted June 7,

IMIIPROVEIVIVENT IN GAUGE ATTACHMENT FOR TINSMITHS' SHEARS.

The Schedule referred to in these Letters Patent and making part of the same I, ORSON XV. STOW, of Plantsville, in the county of Hartford and State of Connecticut, have invented a new and improved Gauge Attachment for Tinsiniths Shears, of which the following is a specification:

My invention consists ofthe employment of a fixed and movable gauge, arn nged at right angles to each other, and secured to a proper clamp, by which said gauges can'be attached to the blade ot' an ordinary tinsmiths shears, ashereafter described.

In the aecornpanying drawing- Figure 1 is a top view ofr my attachment, secured to the blade of an ordinary tinsrniths shears, and

Figure 2 is a front view of the same.

yA designates a gauge permanently secured to. the plate or table B at au angle of forty-live degrees to the saine. Y

The plate B is provided with a slot, a, runningparallel with said plate.

C designates an adjustable gauge, which also stands at an angle of folty-iive degrees to theplate B, and at right angles to the gauge A.

Aport-ion of the gauge C extends into the slot a to prevent saidV gauge from changing its angle.

By means of a screw or bolt, b, and thumb-nut, c, the gauge C can be set at any desired distance from the gauge A.

From each end of the plate or table B extends a yoke, D, which is provided with an arm, E, and setv screw, d, whichg form a suitable clamp. by which the device is readily secured to the upper shear-blade F.

The face of the yoke D should be parallelto the length ofthe plate B, so as to bring the gauges A and C bench shears are arranged for use wit-hthe upper blade stationary, and are operated by movin g the lcwer blade only.

After securing the device to the upper blade F, as shown, the blades F G are opened and the corner oi' a sheet-metal plate passed between them until two of its edges rest against the gauges A C, when theblades are closed and the corner clipped at the required` angle. By adjusting the gauge C to or from the gauge A, more or less of the corner oi' the plate being worked may be clipped, as desired.

By my invention, the ordinary tinsmiths sheais are provided with a convenient corner-cutting gauge.

I claim as my inventionlhe combination ofthe gauge A, plate or Ytable B,

and adjustable gauge 0, the whole constructed and arranged so as to be attached, by clamping mechan` ism, to an ordinary tinsmiths shears, substantially as described.

ORSON W. STOW.

ivitnesses:

FREDERICK SUTLIFF, JAMES SHEPARD. 

